Question

4 The approximate velocity–time graph for a car on a 5-hour journey is shown in the figure. (There is
a very quick driver change midway to prevent driving fatigue!)
a State in which of the regions OA, AB, BC, CD, DE the car is
(i) accelerating,
(ii) decelerating,
(iii) travelling with uniform velocity.
b Calculate the value of the acceleration, deceleration or constant velocity in each region.
c What is the distance travelled over each region?
d What is the total distance travelled?
e Calculate the average velocity for the whole journe

Answer 1

Explanation:

4 The approximate velocity–time graph for a car on a 5-hour journey is shown in the figure. (There is

a very quick driver change midway to prevent driving fatigue!)

a State in which of the regions OA, AB, BC, CD, DE the car is

(i) accelerating,

(ii) decelerating,

(iii) travelling with uniform velocity.

b Calculate the value of the acceleration, deceleration or constant velocity in each region.

c What is the distance travelled over each region?

d What is the total distance travelled?

e Calculate the average velocity for the whole journe